"use client";

import avatarImage from "@/assets/images/avatar.jpeg";
import { Button } from "@/components/ui/button";
import { Card, CardContent } from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { cn } from "@/lib/utils";
import { CalendarDays, Circle, Filter, Search, Ticket, ArrowLeft } from "lucide-react";
import Image from "next/image";
import Link from "next/link";
import { useMemo, useState } from "react";

type TicketStatus = "new" | "ongoing" | "resolved";

type TicketRow = {
  id: string;
  code: string;
  title: string;
  body: string;
  status: TicketStatus;
  priority?: "High Priority";
  author: string;
};

const TICKETS: TicketRow[] = [
  {
    id: "1",
    code: "2023-CS123",
    title: "How to deposit moy to my portal?",
    body: "Lorem ipsum dolor sit amet, consectetur adipiscing elit.Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
    status: "ongoing",
    author: "Janet Adebayo",
  },
  {
    id: "2",
    code: "2023-CS123",
    title: "How to deposit money to my portal?",
    body: "Lorem ipsum dolor sit amet, consectetur adipiscing elit.Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
    status: "new",
    priority: "High Priority",
    author: "Samuel Johnson",
  },
  {
    id: "3",
    code: "2023-CS123",
    title: "How to deposit money to my portal?",
    body: "Lorem ipsum dolor sit amet, consectetur adipiscing elit.Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
    status: "resolved",
    author: "Janet Adebayo",
  },
];

const STATUS_META: Record<TicketStatus, { dot: string; label: string }> = {
  new: { dot: "bg-[#3B82F6]", label: "New Tickets" },
  ongoing: { dot: "bg-[#F59E0B]", label: "On-Going Tickets" },
  resolved: { dot: "bg-[#84CC16]", label: "Resolved Tickets" },
};

const tabList: Array<{ id: "all" | TicketStatus; label: string }> = [
  { id: "all", label: "All Tickets" },
  { id: "new", label: "New" },
  { id: "ongoing", label: "On-Going" },
  { id: "resolved", label: "Resolved" },
];

export default function Page({ params }: { params: { app: string } }) {
  const { app } = params;
  const [tab, setTab] = useState<"all" | TicketStatus>("all");
  const [search, setSearch] = useState("");
  const [statusMenu, setStatusMenu] = useState(false);

  const filtered = useMemo(() => {
    let rows = TICKETS;
    if (tab !== "all") rows = rows.filter((t) => t.status === tab);
    const q = search.trim().toLowerCase();
    if (!q) return rows;
    return rows.filter((t) => [t.title, t.code, t.body, t.author].some((f) => f.toLowerCase().includes(q)));
  }, [tab, search]);

  const isEmpty = false;

  if (isEmpty) {
    return (
      <div className="space-y-4">
        <div className="flex items-center justify-between">
          <h1 className="text-[34px] font-semibold leading-none text-[#272833]">All Tickets</h1>
          <Link href={`/${app}/tickets/new`}>
            <Button className="h-8 rounded bg-[#074473] px-5 text-[11px] font-semibold text-white">Add New Tickets</Button>
          </Link>
        </div>
        <Card className="border-[#EBEEF2]">
          <CardContent className="space-y-6 p-4">
            <div className="flex items-center justify-between">
              <h2 className="text-[26px] font-semibold text-[#272833]">Tickets</h2>
              <div className="flex items-center gap-2">
                <div className="relative">
                  <Search className="absolute left-2 top-1/2 size-3.5 -translate-y-1/2 text-[#9AA1AB]" />
                  <Input className="h-8 w-[180px] bg-white pl-7 text-[11px]" placeholder="Search" />
                </div>
                <Button variant="outline" className="h-8 gap-1 bg-white px-3 text-[11px]">
                  <Filter className="size-3.5" /> Filters
                </Button>
                <Button variant="outline" className="h-8 gap-1 bg-white px-3 text-[11px]">
                  <CalendarDays className="size-3.5" /> filters
                </Button>
              </div>
            </div>
            <div className="flex flex-col items-center justify-center gap-6 py-10 text-center">
              <div className="flex size-[102px] items-center justify-center rounded-full border border-[#E7ECF2] bg-[#F7F8FB]">
                <Ticket className="size-10 text-[#7E8793]" />
              </div>
              <div>
                <p className="text-2xl font-bold text-black">No Tickets Added Yet!</p>
                <p className="text-[#8B8D97]">Add More Tickets To Improve Your Designs</p>
              </div>
              <Link href={`/${app}/tickets/new`}>
                <Button className="h-9 rounded bg-[#074473] px-6 text-[12px] font-semibold text-white">Add New Ticket</Button>
              </Link>
            </div>
          </CardContent>
        </Card>
      </div>
    );
  }

  return (
    <div className="space-y-4">
      <div className="mb-1 flex items-center gap-2.5">
        <Link href={`/${app}/dashboard`} className="rounded bg-white p-2 text-[#383E49]">
          <ArrowLeft className="size-4" />
        </Link>
        <h1 className="text-[32px] font-semibold leading-none text-[#272833]">Support Tickets</h1>
      </div>

      <Card className="border-[#EBEEF2]">
        <CardContent className="space-y-3.5 p-4">
          <div className="flex flex-col gap-3 lg:flex-row lg:items-center lg:justify-between">
            <div className="inline-flex w-fit items-center gap-0 border-b border-[#E6EAF0]">
              {tabList.map((t) => {
                const active = tab === t.id;
                return (
                  <button
                    key={t.id}
                    type="button"
                    onClick={() => setTab(t.id)}
                    className={cn(
                      "h-8 border-b-2 border-transparent bg-transparent px-4 text-[12px] font-semibold",
                      active ? "border-[#074473] text-[#074473]" : "text-[#4B5563]",
                    )}
                  >
                    {t.id === "all" ? (
                      <span className="inline-flex items-center gap-1">
                        <Circle className="size-2.5 fill-current text-[#3B82F6]" /> {t.label}
                      </span>
                    ) : (
                      t.label
                    )}
                  </button>
                );
              })}
            </div>

            <div className="flex flex-wrap items-center gap-2">
              <div className="relative">
                <Search className="absolute left-2 top-1/2 size-3.5 -translate-y-1/2 text-[#9AA1AB]" />
                <Input
                  className="h-8 w-[210px] bg-white pl-7 text-[11px]"
                  placeholder="Search for ticket"
                  value={search}
                  onChange={(e) => setSearch(e.target.value)}
                />
              </div>

              <div className="relative">
                <button
                  type="button"
                  onClick={() => setStatusMenu((v) => !v)}
                  className="inline-flex h-8 min-w-[108px] items-center justify-between rounded border border-[#E6EAF0] bg-white px-3 text-[11px] text-[#7A8490]"
                >
                  Select Priority <span>▾</span>
                </button>
                {statusMenu ? (
                  <div className="absolute right-0 top-9 z-10 w-[150px] rounded border border-[#E6EAF0] bg-white p-2 shadow">
                    {(["new", "ongoing", "resolved"] as TicketStatus[]).map((s) => (
                      <button
                        key={s}
                        type="button"
                        onClick={() => {
                          setTab(s);
                          setStatusMenu(false);
                        }}
                        className="flex w-full items-center gap-2 rounded px-2 py-1 text-left text-[11px] text-[#4B5563] hover:bg-[#F7F8FB]"
                      >
                        <span className={`size-2 rounded-full ${STATUS_META[s].dot}`} />
                        {STATUS_META[s].label}
                      </button>
                    ))}
                  </div>
                ) : null}
              </div>

              <Link href={`/${app}/tickets/new`}>
                <Button className="h-8 rounded bg-[#074473] px-4 text-[11px] font-semibold text-white">New Ticket</Button>
              </Link>
            </div>
          </div>

          <div className="space-y-3">
            {filtered.map((ticket) => (
              <div key={ticket.id} className="rounded-lg border border-[#EEF1F4] bg-white p-3.5">
                <div className="mb-2 flex flex-wrap items-center justify-between gap-2">
                  <div className="flex items-center gap-2">
                    <span className={`size-3 rounded-full ${STATUS_META[ticket.status].dot}`} />
                    <p className="text-[17px] font-semibold text-[#272833]">Ticket# {ticket.code}</p>
                    {ticket.priority ? (
                      <span className="inline-flex rounded-full bg-[#FFE8E7] px-3 py-0.5 text-[10px] font-semibold text-[#F04438]">
                        {ticket.priority}
                      </span>
                    ) : null}
                  </div>
                  <p className="text-[10px] text-[#8B8D97]">Posted at 12:45 AM</p>
                </div>

                <h3 className="text-[27px] font-semibold leading-tight text-[#272833]">{ticket.title}</h3>
                <p className="mb-2.5 text-[11px] leading-relaxed text-[#8B8D97]">{ticket.body}</p>

                <div className="flex items-center justify-between">
                  <div className="flex items-center gap-2">
                    <Image src={avatarImage} alt={ticket.author} className="size-7 rounded-full object-cover" />
                    <span className="text-[11px] text-[#4B5563]">{ticket.author}</span>
                  </div>
                  <Link href={`/${app}/tickets/${ticket.id}`}>
                    <Button className="h-7 rounded bg-[#074473] px-4 text-[11px] font-semibold text-white">Open Ticket</Button>
                  </Link>
                </div>
              </div>
            ))}
          </div>

          <div className="flex items-center justify-between pt-1">
            <Button variant="outline" className="h-8 bg-white px-4 text-[11px]">
              Previous
            </Button>
            <p className="text-[11px] text-[#8B8D97]">Page 1 of 10</p>
            <Button variant="outline" className="h-8 bg-white px-4 text-[11px]">
              Next
            </Button>
          </div>
        </CardContent>
      </Card>
    </div>
  );
}